ICSC 1128 - COBALT(II) ACETATE TETRAHYDRATE

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COBALT(II) ACETATE TETRAHYDRATE

ICSC: 1128
_{October 2001}

Acetic acid, cobalt(+2) salt
Cobaltous acetate (tetrahydrate)
Cobaltous diacetate tetrahydrate

CAS No: 6147-53-1
RTECS No: AG3325000

C₄H₆CoO₄.4H₂O
Molecular mass: 249.1

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
Inhalation	Cough. Shortness of breath. Sore throat.	Local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Redness.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes	Redness. Pain.	Safety goggles, or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Abdominal pain. Diarrhoea. Nausea. Vomiting. Weakness.	Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. (Extra personal protection: P2 filter respirator for harmful particles.) Do NOT let this chemical enter the environment.

EMERGENCY RESPONSE	STORAGE
	Separated from strong oxidants. Well closed.

IMPORTANT DATA

Physical State; Appearance
RED CRYSTALS

Chemical dangers
The substance decomposes on heating producing irritating fumes. Reacts with strong oxidants causing fire and explosion hazard.

Occupational exposure limits
TLV: (as Cobalt) 0.02 mg/m³ as TWA A3 (ACGIH 2001). BEI 15 ug/l urine, B, 1 ug/l blood, B,Sq,

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

Effects of short-term exposure
The substance is irritating to the eyes, the skin and the respiratory tract.

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation exposure may cause asthma. Lungs may be affected by repeated or prolonged exposure. The substance may have effects on the heart, thyroid, bone marrow, when ingested. This substance is possibly carcinogenic to humans.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Melting point: 140°C Density: 1.7 g/cm³ Solubility in water: very good	Bioaccumulation of this chemical may occur in seafood.

NOTES

Depending on the degree of exposure, periodic medical examination is indicated.
Do NOT take working clothes home.
Anyone who has shown symptoms of asthma due to this substance should avoid all further contact.
The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
The apparent melting point caused by loss of crystal water is given.
The recommendations on this Card also apply to Cobalt (II) acetate anhydrous (CAS 71-48-7).

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2002

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Updated by AS. Approved by EC. Last update: 22.03.2002